What is the current water temperature in Holyhead?

Q: What is the current water temperature in Holyhead?

As of now, in Holyhead, the water temperature is 16.09°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United Kingdom > Holyhead

Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

61.0

°F

September 16, 08:13

Trend:

decreasing

Yesterday:

61.1°F

Tomorrow:

60.9°F

Sunrise:

06:53

Sunset:

19:33

Day Length:

12 h. 40 min.

Holyhead in September

Minimum:

47.2°F

Average:

48.9°F

Maximum:

50.3°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 61.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 62.0°F on 2022, while the historical minimum was 58.4°F on 2015.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 60.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Holyhead

Date	Current Year actual* / forecast**	last year	10 years average
Sep 2	62.4°F	60.4°F	60.9°F
Sep 3	62.2°F	61.0°F	60.8°F
Sep 4	62.1°F	60.7°F	60.8°F
Sep 5	61.8°F	60.5°F	60.8°F
Sep 6	61.8°F	60.8°F	60.9°F
Sep 7	61.6°F	60.6°F	60.9°F
Sep 8	62.0°F	60.6°F	61.0°F
Sep 9	62.2°F	60.3°F	61.1°F
Sep 10	62.1°F	60.2°F	61.0°F
Sep 11	61.8°F	60.2°F	60.9°F
Sep 12	61.5°F	60.3°F	60.8°F
Sep 13	61.5°F	59.9°F	60.7°F
Sep 14	61.4°F	59.9°F	60.6°F
Sep 15	61.1°F	59.8°F	60.6°F
Sep 16	61.0°F	59.8°F	60.4°F
Sep 17	60.9°F	59.8°F	60.4°F
Sep 18	60.9°F	60.2°F	60.4°F
Sep 19	60.9°F	60.2°F	60.4°F
Sep 20	60.8°F	60.2°F	60.3°F
Sep 21	60.9°F	60.2°F	60.4°F
Sep 22	60.7°F	60.4°F	60.2°F
Sep 23	60.7°F	60.2°F	60.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Holyhead was recorded on August 29, 2025, reaching a 63.3°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.6°F in Winter, 48.5°F in Spring, 58.0°F in Summer, and 57.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	60.6°F	19mi
Bangor	61.0°F	21mi
Conwy	60.6°F	33mi
Douglas	60.2°F	59mi
Aberystwyth	62.1°F	66mi

* current water temperature in this city

** straight line distance from Holyhead